[PATCH v4 22/36] iio: orientation: hid-sensor-rotation: use local struct device

From: Sanjay Chitroda

Date: Sun May 24 2026 - 15:30:00 EST


From: Sanjay Chitroda <sanjayembeddedse@xxxxxxxxx>

Introduce a local struct device pointer derived from &pdev->dev.
This avoids repeated &pdev->dev usage and improves readability.

Signed-off-by: Sanjay Chitroda <sanjayembeddedse@xxxxxxxxx>
---
drivers/iio/orientation/hid-sensor-rotation.c | 22 +++++++++----------
1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/drivers/iio/orientation/hid-sensor-rotation.c b/drivers/iio/orientation/hid-sensor-rotation.c
index 20563d8efaf6..332d56757679 100644
--- a/drivers/iio/orientation/hid-sensor-rotation.c
+++ b/drivers/iio/orientation/hid-sensor-rotation.c
@@ -243,6 +243,7 @@ static int dev_rot_parse_report(struct platform_device *pdev,
u32 usage_id,
struct dev_rot_state *st)
{
+ struct device *dev = &pdev->dev;
int ret;

ret = sensor_hub_input_get_attribute_info(hsdev,
@@ -253,11 +254,10 @@ static int dev_rot_parse_report(struct platform_device *pdev,
if (ret)
return ret;

- dev_dbg(&pdev->dev, "dev_rot %x:%x\n", st->quaternion.index,
+ dev_dbg(dev, "dev_rot %x:%x\n", st->quaternion.index,
st->quaternion.report_id);

- dev_dbg(&pdev->dev, "dev_rot: attrib size %d\n",
- st->quaternion.size);
+ dev_dbg(dev, "dev_rot: attrib size %d\n", st->quaternion.size);

st->scale_precision = hid_sensor_format_scale(
hsdev->usage,
@@ -270,14 +270,14 @@ static int dev_rot_parse_report(struct platform_device *pdev,
/* Function to initialize the processing for usage id */
static int hid_dev_rot_probe(struct platform_device *pdev)
{
- struct hid_sensor_hub_device *hsdev = dev_get_platdata(&pdev->dev);
+ struct device *dev = &pdev->dev;
+ struct hid_sensor_hub_device *hsdev = dev_get_platdata(dev);
int ret;
char *name;
struct iio_dev *indio_dev;
struct dev_rot_state *rot_state;

- indio_dev = devm_iio_device_alloc(&pdev->dev,
- sizeof(struct dev_rot_state));
+ indio_dev = devm_iio_device_alloc(dev, sizeof(struct dev_rot_state));
if (indio_dev == NULL)
return -ENOMEM;

@@ -307,13 +307,13 @@ static int hid_dev_rot_probe(struct platform_device *pdev)
rotation_sensitivity_addresses,
ARRAY_SIZE(rotation_sensitivity_addresses));
if (ret) {
- dev_err(&pdev->dev, "failed to setup common attributes\n");
+ dev_err(dev, "failed to setup common attributes\n");
return ret;
}

ret = dev_rot_parse_report(pdev, hsdev, hsdev->usage, rot_state);
if (ret) {
- dev_err(&pdev->dev, "failed to setup attributes\n");
+ dev_err(dev, "failed to setup attributes\n");
return ret;
}

@@ -328,13 +328,13 @@ static int hid_dev_rot_probe(struct platform_device *pdev)
ret = hid_sensor_setup_trigger(indio_dev, name,
&rot_state->common_attributes);
if (ret) {
- dev_err(&pdev->dev, "trigger setup failed\n");
+ dev_err(dev, "trigger setup failed\n");
return ret;
}

ret = iio_device_register(indio_dev);
if (ret) {
- dev_err(&pdev->dev, "device register failed\n");
+ dev_err(dev, "device register failed\n");
goto error_remove_trigger;
}

@@ -344,7 +344,7 @@ static int hid_dev_rot_probe(struct platform_device *pdev)
ret = sensor_hub_register_callback(hsdev, hsdev->usage,
&rot_state->callbacks);
if (ret) {
- dev_err(&pdev->dev, "callback reg failed\n");
+ dev_err(dev, "callback reg failed\n");
goto error_iio_unreg;
}

--
2.34.1